Js dom operation Click current Show Click other Hidden?

Click the child class under the current checks to be displayed as none, then the other checks,class is hidden by none, and the reason why it is not directly hidden by the parent. The parent always has the style of display
. 
<div class="checks">
    <div class="none"></div>
    <div class="none"></div>
    <div class="none"></div>
</div>
<div class="checks">
    <div class="none"></div>
    <div class="none"></div>
</div>

var g = document.getElementsByClassName("checks");
for(let i = 0;i<g.length;iPP) {
    let none = g[i].getElementsByClassName("none");
    g[i].onclick = function (e) {
        for (let j =0;j<none.length;jPP) {
            // if() {
            none[j].style.display = "block"
            // } else {
            //   none[j].className= "none"
            // }
        }
        e.stopPropagation();
    }
}
Javascript html5 html
Mar.20,2021

you are right to click on the current div, to change the css attribute of the current div. But with this line of thinking, there is still something wrong with the code you write.

1. Get the element outside the loop, otherwise you will have to get
2 every time. The logic inside is wrong, so take a good look at it

.

however, there is still a better way to do this, that is, when you click on a div, add a class, to it instead of modifying its own properties 

var g = document.getElementsByClassName('checks');
        
        function ads () {
            var noneFirst =  document.getElementsByClassName('none');
            for (let a = 0; a < noneFirst.length; aPP) {
                noneFirst[a].style.display = 'none'
            }
        }
        for(let i = 0;i<g.length;iPP) {
            g[i].onclick = function (e) {
                ads()
                var none = g[i].getElementsByClassName('none');
//                none.style.display = 'none'
                for (let j =0;j<none.length;jPP) {
                    none[j].style.display = 'block'
                }
                e.stopPropagation();
            }
        }

Previous: Why is there no double-bound api? like v-model and ng-model in React?

Next: Why do all paths go to the page corresponding to the root path?

css mysql arrays josn react html typescript webpack npm sass R objective-c .net sql-server jquery python-3.x angularjs django angular excel regex iphone ajax linux xml pandas vba spring database wordpress string wpf xcode windows bash postgresql oracle multithreading eclipse list firebase algorithm macos forms image scala visual-studio azure bootstrap spring-boot react-native python-2.7 docker performance function winforms matlab powershell apache dataframe api sqlite numpy rest shell selenium flutter dart maven loops qt swing android-studio csv express file class tensorflow sorting codeigniter perl
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e8baaf-1077.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e8baaf-1077.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
Need Help?